Stadium: Court F Round: 25 Ground: Hardcourt indoor
| Challenger Hua Hin Qual | 2017/11/20 08:30 | Hiroki Moriya v Cheong-Eui Kim | 6-1,7-5 |
| Challenger Shanghai | 2018/09/08 03:00 | N. Vijay Sundar Prashanth v Cheong-Eui Kim | 6-4,6-3 |
| ITF Korea F5 | 2018/08/25 01:00 | Cheong-Eui Kim v Ji Sung Nam | 2-6,3-6 |
| ITF Korea F5 | 2018/08/24 01:15 | Cheong-Eui Kim v Jae Hwan Kim | 6-3,6-3 |
| ITF Korea F5 | 2018/08/23 02:00 | Cheong-Eui Kim v Seong Taek Im | 7-6,6-0 |
| ITF Korea F5 | 2018/08/21 03:15 | Cheong-Eui Kim v Juan Ignacio Batalla | 6-1,6-2 |
| Challenger Gwangju | 2018/08/14 01:00 | Cheong-Eui Kim v Sidharth Rawat | 5-7,7-6,2-6 |
| ITF Indonesia F2 | 2018/08/03 02:00 | Cheong-Eui Kim v Kaito Uesugi | 4-6,6-7 |
| ITF Indonesia F2 | 2018/08/02 03:00 | Cheong-Eui Kim v Sho Shimabukuro | 6-4,6-4 |
| Challenger Zhangjiagang | 2018/09/06 06:10 | Hiroki Moriya v Yasutaka Uchiyama | 6-4,6-7,3-6 |
| Challenger Zhangjiagang | 2018/09/05 04:20 | Hiroki Moriya v Tristan Lamasine | 7-6,6-2 |
| US Open | 2018/08/23 20:25 | Hiroki Moriya v Federico Gaio | 4-6,3-6 |
| US Open | 2018/08/22 16:30 | Ilya Ivashka v Hiroki Moriya | 7-5,4-6,1-6 |
| Challenger Jinan | 2018/08/07 09:10 | Hiroki Moriya v Ze Zhang | 3-6,4-6 |
| Challenger Chengdu | 2018/07/30 08:15 | Hiroki Moriya v Alexei Popyrin | 6-4,6-7,4-6 |
| Challenger Astana | 2018/07/16 05:30 | Hiroki Moriya v Maxime Janvier | 4-6,2-6 |
| Challenger Recanati | 2018/07/06 15:50 | Roberto Quiroz v Hiroki Moriya | 6-4,6-2 |